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目的:分析低颅压综合征的MRI表现及诊断价值。方法:回顾性分析经腰穿测脑脊液压证实的10例低颅压综合征的MRI表现。结果:本组10例低颅压患者均有特征性的立位性头痛加重,8例患者侧卧位脑脊液压力均小于60mm H2O,2例无脑脊液流出,10例MRI增强扫描均表现为硬脑膜连续、弥漫、均匀线状强化,小脑扁桃体下疝3例,硬膜下慢性血肿5例,硬膜下积液2例。结论:低颅压综合征MRI表现具有特征性,可以观察硬脑膜的异常强化,脑组织下沉、移位合并硬膜下积液或血肿的情况,对本病诊断很有价值。
Objective: To analyze MRI manifestations and diagnostic value of low intracranial pressure syndrome. Methods: MRI findings of 10 patients with low intracranial pressure syndrome confirmed by lumbar puncture and cerebrospinal fluid pressure were retrospectively analyzed. Results: All 10 patients with low intracranial pressure had characteristic elevation headache aggravating. The cerebrospinal fluid pressure was less than 60 mm H2O in 8 patients, no cerebrospinal fluid was exuded in 2 patients, and the dura mater Continuous, diffuse, uniform linear enhancement, cerebellar tonsillar hernia in 3 cases, 5 cases of subdural hematoma, subdural effusion in 2 cases. CONCLUSIONS: The manifestations of low intracranial pressure syndrome are characterized by MRI, which can observe the abnormal enhancement of dura mater, the subsidence of brain tissue, the displacement of subdural effusion or hematoma, which is of great value in the diagnosis of this disease.